ugkfielddefn.h

linux下一款GIS程序源码

// ugkfielddefn.h: interface for the UGKFieldDefn class.
//
/************************************************************************/
/*                             UGKFieldDefn                             */
/************************************************************************/

/**
 * Definition of an attribute of an UGKFeatureDefn.
 * 一种特定字段的定义
 */

#ifndef  UGKFieldDefn_H
#define  UGKFieldDefn_H

#include "ugkglobal.h"


class UGKFieldDefn  
{
private:
	char                *pszName;   //字段名
	UGKFieldType        eType;     //字段类型   UGKFieldType为枚举类型
	UGKJustification    eJustify;  //排列位置，靠左还是靠右
	int                 nWidth;    //字段宽度     /* zero is variable */
	int                 nPrecision;
	UGKField            uDefault;   //字段值

	void                Initialize( const char *, UGKFieldType );

public:
	UGKFieldDefn( const char *, UGKFieldType );
	UGKFieldDefn( UGKFieldDefn * );
	virtual ~UGKFieldDefn();

	void                SetName( const char * );
	const char         *GetNameRef() { return pszName; }

	UGKFieldType        GetType() { return eType; }
	void                SetType( UGKFieldType eTypeIn ) { eType = eTypeIn;}
	static const char  *GetFieldTypeName( UGKFieldType );

	UGKJustification    GetJustify() { return eJustify; }
       void             SetJustify( UGKJustification eJustifyIn ) { eJustify = eJustifyIn; }
	int              GetWidth() { return nWidth; }
	void             SetWidth( int nWidthIn ) { nWidth = (0 > nWidthIn) ? 0 : nWidthIn; }

	int              GetPrecision() { return nPrecision; }
       void             SetPrecision( int nPrecisionIn )  { nPrecision = nPrecisionIn; }

       void             Set( const char *, UGKFieldType, int = 0, int = 0,UGKJustification = OJUndefined );

	void                SetDefault( const UGKField * );
	const UGKField     *GetDefaultRef() { return &uDefault; }

};

#endif